Currently all posts in the category you specify for events will still show up, so it’s up to you if you want to keep them there or if they should be deleted. I do have a list of features for the next update (free with purchase) that I didn’t have time to implement before the release.

There are so many plugins and 3rd party services already out there that I probably won’t hard code anything into the theme. That is unless I can think of a better way of doing it that I think would only work with this theme specifically.